Manual Dimplex SI 85TUR (page 27 of 64) (English, German, French)

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www.gdts.one 452237.66.56 · FD 9912 EN-9

SI 85 TUR English

7.5 Temperature sensor

The following temperature sensors are already installed or must

be installed additionally:

External temperature sensor (R1) supplied (NTC-2)

Return temperature heating circuit (R2) installed (NTC-10)

Return temperature primary circuit (R24) installed (NTC-

10)

Flow temperature heating circuit (R9) installed (NTC-10)

Flow temperature primary circuit (R6) installed (NTC-10)

7.5.1 Sensor characteristic curves

The temperature sensors to be connected to the heat pump

manager must correspond to the sensor characteristic curve il-

lustrated in Fig. 7.8 on page 9. The only exception is the exter-

nal temperature sensor included in the scope of supply of the

heat pump (see Fig. 7.9 on page 9)

Fig. 7.8:Sensor characteristic curve NTC-10

Fig. 7.9:Sensor characteristic curve, NTC-2 according to DIN 44574 Ex-

ternal temperature sensor

7.5.2 Mounting the external temperature

sensor

The temperature sensor must be mounted in such a way that all

weather conditions are taken into consideration and the meas-

ured value is not falsified.

Mount on the external wall on the north or north-west side

where possible

Do not install in a “sheltered position” (e.g. in a wall niche or

under a balcony)

Not in the vicinity of windows, doors, exhaust air vents, ex-

ternal lighting or heat pumps

Not to be exposed to direct sunlight at any time of year

7.5.3 Installing the strap-on sensor

It is only necessary to mount the strap-on sensors if they are in-

cluded in the scope of supply of the heat pump but have not yet

been installed.

The strap-on sensors can be fitted as pipe-mounted sensors or

installed in the immersion sleeve of the compact manifold.

Mounting as a pipe-mounted sensor

Remove paint, rust and scale from heating pipe.

Coat the cleaned surface with heat transfer compound

(apply sparingly).

Attach the sensor with a hose clip (tighten firmly, as loose

sensors can cause malfunctions) and thermally insulate.

7.5.4 Hydraulic distribution system

The compact manifold and the dual differential pressureless

manifold function as an interface between the heat pump, the

heating distribution system, the buffer tank and, in some cases,

even the hot water cylinder. A compact system is used to sim-

plify the installation process, so that a lot of different compo-

nents do not have to be installed individually. Further informa-

tion can be found in the relevant installation instructions.

Compact manifold

The return sensor can remain in the heat pump, or should be in-

stalled in the immersion sleeve. The remaining empty space be-

tween the sensor and the immersion sleeve must be filled com-

pletely with heat transfer compound.

Dual differential pressureless manifold

In order for the heating circuit pumps of the generator and con-

sumer circuits to supply the flow to the return sensor, this must

be installed in the immersion sleeve of the dual differential

pressureless manifold.

Temperature in °C -20 -15 -10 -5 0 5 10

NTC-2 in k14.6 11.4 8.9 7.1 5.6 4.5 3.7

NTC-10 in k67.7 53.4 42.3 33.9 27.3 22.1 18.0

15 20 25 30 35 40 45 50 55 60

2.9 2.4 2.0 1.7 1.4 1.1 1.0 0.8 0.7 0.6

14.9 12.1 10.0 8.4 7.0 5.9 5.0 4.2 3.6 3.1

-20-15-10-5 0 5 1015202530354045505560

External temperature in [°C]

Resistance value in [kOhm]

-20-15-10-5 0 5 1015202530354045505560

External temperature in [°C]

Resistance value in [kOhm]

Dimensioning parameter sensor lead

Conductor material Cu

Cable-length 50 m

Ambient temperature 35 °C

Laying system B2 (DIN VDE 0298-4 /

IEC 60364-5-52)

External diameter 4-8 mm

Hose clip

Strap-on sensor

Thermal insulation

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Dimplex SI 85TUR Manual

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